Radiator



June 23, 1931. J, LUKOMSKI RADIATOR Filed May 5, 1950 INVENTOR ATTORN EYS Patented June 23, 1931 JOHN B. LUKOMSKI, OF DETROIT, MICHIGAN RADIATOR 1 Application filed May 5, 1930. Serial No. 449,755.

The present invention pertains to a novel 'adiator adapted for the circulation of a heating fluid such as steam or hot water therethrough.

The principal object of the invention is to provide a radiator which not only heats the surrounding air by contact with the heated surfaces, but also induces the circulation of atmospheric air through certain parts of the radiator. In the accomplishment of this object the radiator comprises a pair of spaced headers connected in fluid communication by means of a pair of outer tubes.

In these outer tubes are positioned inner tubes with their ends fitted in the outer faces of the headers and open to the atmosphere. The inner tubes are considerably smaller than the outer tubes to provide a substantially annular passage between each outer tube and the inner tube therein, these passages constituting the fluid connection between the headers.

The heating medium is introduced into one of the headers and withdrawn from the other. The passage of the heating medium through the outer tubes obviously warms the outer surrounding air in the ordinary manner. Moreover, the super-atmospheric temperature in the inner tubes induces a circulation of air upwardly through these tubes, during which this circulated air enters at substantially room temperature and 7 is discharged at a higher temperature.

The invention is fully disclosed by way w of example in the following description and in the accompanying drawings, in which- Figure 1 is a side elevation of the device, partly in section;

Fig. 2 is an end view, partly in section;

Fig. 3 is a top plan view, partly in section; and

Fig. 4 is a cross section on the line 4--4 of Figure 1.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

The device comprises a pair of spaced and parallel headers 1 and 2 of like construction and positioned either at the top and bottom as illustrated,'.or vertically at the lateral ends. The confronting'or inwardly facing sides of the ing openings 3 as shown more clearly in Figures 1 and 2. Tubes 4 are mounted in a manner to establish communication between the headers by having one end driven into an opening of one header and the other end driven into the opposed opening of the other header. Thedegree of taper in the walls of the openings 3 is such as to permit the end of a pipe to be driven therein and yet compress the same sufliciently to form a tight joint between the pipe and header without the use of other means.

headers are formed with taperhe outwardly facing walls of the headers, that is, the walls opposite'and parallel to those formed" with openings 3, are apertured or perforated at 5 in line with and preferably concentric with the openings 3. Inner tubes or pipesG passing through the outer tubes 4 have their ends secured in the apertures 5, the latterhaving tapered walls to form a drive or friction joint of the character already described. It will be seen that thetub'es 6 are open to the atmosphere at both ends,while the outer tubes 4 are open at both ends to the respective headers. The assembly is further held together by means of tie rods? passed through certain of the tubes6, preferably those at the corners, retained by'nuts or heads 8 bearing against disks or washers 9 engaging the outwardly facing apertured walls.

One end of each header is formed with a tapped hole 10 for the connection of a steam or water pipe thereto. The intake is at one of the openings 10 and the outlet at the I other opening, according to the direction in which the circulation is to take place. The

and 7 remaining ends of the headers are preferably apertured and tapped in like manner and closed by plugs 11. This type of construction enables either end of each header to be connected to the fluid pipe and the other end to be closed. In the use of the device a suitable heating medium such as steam or hot water is circulated from one header to the other through the outer tubes 4. The air in the inner tubes will be continuously heated and discharged through the upper ends, whereupon cold air will be drawn into the lower ends for similar treatment. It will also be apparent that the head- 5 ers may be supported horizontally or vertically, or even in a non-parallel relation when curved tubes are used.

Although a specific embodiment of the invention has been illustrated and described, it will be understood that various alterations in the details of construction may be made without departing from the scope of the invention, as indicated by the appended claims. lVhat I claim is a 1. A radiator comprising a pair of headers, outer tubes joined to confronting walls of said headers and establishing communication between theheaders, inner tubes passed through said outer tubes'and headers and 330 secured in the outwardly facing walls thereof, said inner tubes being open to the atmosphere at both ends, inlet means in one of the headers, outlet means in the other header, tie rods passing through certain of 5 said inner tubes, and means on said rods clamping said headers against the ends of said outer tubes. i

' 2. A radiator comprising headers having tapered openings in the confronting walls :3 thereof, said walls tapering inwardly towards the headers in which they are formed, 7 tubes having their ends driven into the openings of said opposed headers and establishing communication between the headers, inad ner tubes passed through 'said outer tubes and headers and secured in the outwardly facing walls thereof, said inner tubes being open to the atmosphere at both ends, inlet means in one of the headers, outlet means 5 in the other header, tie rods passing through certain of said inner tubes, and means on said rods clamping said headers against the ends of said outer tubes.

In testimony whereof I aflix my signature. 7 JOHN B. LUKOMSKI.

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